Engineering posts about DNS
Curated summaries and key learnings for engineers working with DNS.
Natural disasters and government interference: examining Q2 2026’s major Internet disruption events
The article examines significant Internet disruptions during Q2 2026, highlighting the impact of natural disasters and government actions on connectivity. It details events such as Super Typhoon...
Cloudflare Internal DNS is now generally available
Cloudflare Internal DNS has been launched for general availability, providing a unified platform for managing both public and private DNS resources. This service simplifies DNS operations by...
A broken DNSSEC rollover took down .AL. Now 1.1.1.1 tells you when validation is bypassed
On July 3, 2026, a DNSSEC key rollover for the .AL TLD led to widespread validation failures, impacting access to Albanian government and media websites. The public DNS resolver 1.1.1.1, operated by...
When DNSSEC goes wrong: how we responded to the .de TLD outage
The article discusses the DNSSEC outage affecting the .de TLD on May 5, 2026, when DENIC published incorrect DNSSEC signatures, leading to widespread SERVFAIL responses from validating resolvers. It...